Epithelial Cyst Arising in an Intrapancreatic Accessory Spleen: A Diagnostic Dilemma

Hirofumi Yamanishi; Teru Kumagi; Tomoyuki Yokota; Mitsuhito Koizumi; Nobuaki Azemoto; Jota Watanabe; Yosuke Mizuno; Atsuro Sugita; Masanori Abe; Yoshio Ikeda; Bunzo Matsuura; Yoichi Hiasa; Morikazu Onji

doi:10.2169/internalmedicine.50.5340

CASE REPORTS

Epithelial Cyst Arising in an Intrapancreatic Accessory Spleen: A Diagnostic Dilemma

Hirofumi Yamanishi, Teru Kumagi, Tomoyuki Yokota, Mitsuhito Koizumi, Nobuaki Azemoto, Jota Watanabe, Yosuke Mizuno, Atsuro Sugita, Masanori Abe, Yoshio Ikeda, Bunzo Matsuura, Yoichi Hiasa, Morikazu Onji

Author information

Hirofumi Yamanishi
Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
Teru Kumagi
Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
Tomoyuki Yokota
Center for Liver-Biliary-Pancreatic Disease, Matsuyama Red Cross Hospital, Japan
Mitsuhito Koizumi
Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
Nobuaki Azemoto
Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
Jota Watanabe
Hepato-biliary-pancreatic Surgery and Transplantation, Ehime University Graduate School of Medicine, Japan
Yosuke Mizuno
Department of Pathology, Matsuyama Red Cross Hospital, Japan
Atsuro Sugita
Pathology Division, Ehime University Hospital, Japan
Masanori Abe
Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
Yoshio Ikeda
Endoscopy Center, Ehime University Hospital, Japan
Bunzo Matsuura
Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
Yoichi Hiasa
Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
Morikazu Onji
Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan

Keywords: epithelial cyst, intrapancreatic accessory spleen, endoscopic ultrasound, mucinous cystic neoplasm, differential diagnosis

JOURNAL OPEN ACCESS

2011 Volume 50 Issue 18 Pages 1947-1952

DOI https://doi.org/10.2169/internalmedicine.50.5340

Details

Abstract

An epithelial cyst in an intrapancreatic accessory spleen (ECIAS) is a rare disease that is commonly misdiagnosed preoperatively. To identify the clinical and imaging features of ECIAS, we reviewed the relevant medical literature. Twenty-one cases of ECIAS were identified, including our own. The cases were mainly diagnosed as mucinous cystic neoplasm (MCN) preoperatively based on clinical and imaging features, such as, a woman in middle age; elevation of serum CA19-9 levels; location in the tail of the pancreas; and a solid component resembling a mural nodule. ECIAS is another lesion to be considered in the differential diagnosis of MCN.

Corresponding author

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